From nobody Fri Nov 14 21:03:15 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1760683637979180.25504040971862; Thu, 16 Oct 2025 23:47:17 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1v9eDn-00065L-40; Fri, 17 Oct 2025 02:45:51 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1v9eDd-0005zd-5f for qemu-devel@nongnu.org; Fri, 17 Oct 2025 02:45:41 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1v9eDU-0003uS-RT for qemu-devel@nongnu.org; Fri, 17 Oct 2025 02:45:40 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8AxB9EE5vFoOzoXAA--.50091S3; Fri, 17 Oct 2025 14:45:24 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowJDxQ+QD5vFoHDntAA--.1225S3; Fri, 17 Oct 2025 14:45:24 +0800 (CST) From: Bibo Mao To: Song Gao Cc: Jiaxun Yang , qemu-devel@nongnu.org Subject: [PATCH v3 1/7] hw/loongarch/virt: Add field ram_end in LoongArchVirtMachineState Date: Fri, 17 Oct 2025 14:45:17 +0800 Message-Id: <20251017064523.2065993-2-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20251017064523.2065993-1-maobibo@loongson.cn> References: <20251017064523.2065993-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJDxQ+QD5vFoHDntAA--.1225S3 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1760683642446154100 Content-Type: text/plain; charset="utf-8" DRAM region is dynamically set and the last valid physical address region with LoongArch Virt Machine. To record the last valid physical address, field ram_end is added in structure LoongArchVirtMachineState. In future end address of DRAM cannot exceed base addres of PCIE 64-bit MMIO region. Signed-off-by: Bibo Mao --- hw/loongarch/virt.c | 2 ++ include/hw/loongarch/virt.h | 1 + 2 files changed, 3 insertions(+) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 49434ad182..2561a56378 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -849,8 +849,10 @@ static void virt_init(MachineState *machine) exit(EXIT_FAILURE); } machine_memory_devices_init(machine, base, device_mem_size); + base +=3D device_mem_size; } =20 + lvms->ram_end =3D base; /* load the BIOS image. */ virt_firmware_init(lvms); =20 diff --git a/include/hw/loongarch/virt.h b/include/hw/loongarch/virt.h index 27b1755802..cfb2be4931 100644 --- a/include/hw/loongarch/virt.h +++ b/include/hw/loongarch/virt.h @@ -125,6 +125,7 @@ struct LoongArchVirtMachineState { uint64_t misc_feature; uint64_t misc_status; DeviceState *dintc; + hwaddr ram_end; }; =20 #define TYPE_LOONGARCH_VIRT_MACHINE MACHINE_TYPE_NAME("virt") --=20 2.39.3